Global Patent Index - EP 0308626 A3

EP 0308626 A3 19890809 - SELF-BLAST INTERRUPTER

Title (en)

SELF-BLAST INTERRUPTER

Publication

EP 0308626 A3 19890809 (DE)

Application

EP 88112424 A 19880801

Priority

DE 3732137 A 19870924

Abstract (en)

[origin: EP0308626A2] Self-blasting switches, with blasting produced by the arc, have a gas storage chamber in which the expanded gas is compressed and out of which it flows back to the extinguishing path when the current is approaching the point where it passes through zero, and hence blasts the arc. In the gas storage chamber, mixing takes place between the hot and the cold insulating gas, resulting in a reduction in the extinguishing characteristics. This disadvantageous mixing of the hot and cold extinguishing gas is avoided by the insertion of an intermediate wall 8 into the gas storage chamber 7 which separates the inflowing hot extinguishing gas from the cold extinguishing gas which is to be compressed and used for the extinguishing process. <IMAGE>

IPC 1-7

H01H 33/95; H01H 33/74

IPC 8 full level

H01H 33/74 (2006.01); H01H 33/95 (2006.01); H01H 33/98 (2006.01); H01H 33/985 (2006.01)

CPC (source: EP)

H01H 33/98 (2013.01)

Citation (search report)

Designated contracting state (EPC)

CH DE FR LI SE

DOCDB simple family (publication)

EP 0308626 A2 19890329; EP 0308626 A3 19890809; EP 0308626 B1 19930310; DE 3879059 D1 19930415

DOCDB simple family (application)

EP 88112424 A 19880801; DE 3879059 T 19880801